#include "mystdio.h"
#include<stdio.h>
#include <string.h>
#include <unistd.h>
int main()
{
    mFILE* fp=mfopen("./log.txt","w");
    if(fp==NULL)
    {
        return 1;
    }

    int cnt=10;
    while(cnt--)
    {
        printf("write %d\n",cnt);
        char buffer[1024];
        snprintf(buffer,sizeof(buffer),"hello message,number is %d",cnt);
        cnt--;
        mfwrite(buffer,strlen(buffer),fp);
        mfflush(fp);
        sleep(1);
    }

    mfclose(fp);
    return 0;
}